JEE PHYSICS MCQ: SYSTEM OF PARTICLES

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Moment of inertia of a solid sphere about its diameter is '

\mathrm{I}

'. It is then casted into 27 small sphere of same diameter. The moment of inertia of each new sphere is

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Correct option: C

\frac{\mathrm{I}}{243}

Option C (

\frac{\mathrm{I}}{243}

) is correct because the moment of inertia is proportional to MR², and both mass and radius change when the sphere is recast.

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\mathrm{AB}

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